Ben. Don't do the PPL. To keep it current will cost you thousands. You're way way too young to be thinking about professional pilots training unless your Dad is already and airline Captain with a Porsche in the garage. Aim to start flying training when you're, oooh, 23 and have save some cash. By that time the industry will have improved and you might stand a slim chance of getting a job.
Right now. At 16. With not much money. Forget it.